MasterMagnetsLtd / This Master Magnets Eddy Current Separator is shown separating valuable non-ferrous metals such as aluminium and copper from shredded plastics at a PVC recycling plant in the UK. Eddy Current Separators work by inducing magnetic fields around conductive non-ferrous metals. The magnetic fields oppose the field that is produced by the magnetic rotor itself, thus repelling the metals away from the free-falling non-metals.